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b24413180f
Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license of the kernel, which is GPL version 2. Update the files which contain no license information with the 'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information, Further patches will be generated in subsequent months to fix up cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base worksheet, and did an initial spot review of a few 1000 files. The 4.13 kernel was the starting point of the analysis with 60,537 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately clear with lawyers working with the Linux Foundation. Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines). All documentation files were explicitly excluded. The following heuristics were used to determine which SPDX license identifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time. In total, over 70 hours of logged manual review was done on the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
120 lines
3.3 KiB
C
120 lines
3.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __ACP_HW_H
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#define __ACP_HW_H
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#include "include/acp_2_2_d.h"
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#include "include/acp_2_2_sh_mask.h"
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#define ACP_PAGE_SIZE_4K_ENABLE 0x02
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#define ACP_PLAYBACK_PTE_OFFSET 10
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#define ACP_CAPTURE_PTE_OFFSET 0
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#define ACP_GARLIC_CNTL_DEFAULT 0x00000FB4
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#define ACP_ONION_CNTL_DEFAULT 0x00000FB4
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#define ACP_PHYSICAL_BASE 0x14000
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/* Playback SRAM address (as a destination in dma descriptor) */
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#define ACP_SHARED_RAM_BANK_1_ADDRESS 0x4002000
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/* Capture SRAM address (as a source in dma descriptor) */
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#define ACP_SHARED_RAM_BANK_5_ADDRESS 0x400A000
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#define ACP_DMA_RESET_TIME 10000
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#define ACP_CLOCK_EN_TIME_OUT_VALUE 0x000000FF
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#define ACP_SOFT_RESET_DONE_TIME_OUT_VALUE 0x000000FF
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#define ACP_DMA_COMPLETE_TIME_OUT_VALUE 0x000000FF
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#define ACP_SRAM_BASE_ADDRESS 0x4000000
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#define ACP_DAGB_GRP_SRAM_BASE_ADDRESS 0x4001000
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#define ACP_DAGB_GRP_SRBM_SRAM_BASE_OFFSET 0x1000
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#define ACP_INTERNAL_APERTURE_WINDOW_0_ADDRESS 0x00000000
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#define ACP_INTERNAL_APERTURE_WINDOW_4_ADDRESS 0x01800000
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#define TO_ACP_I2S_1 0x2
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#define TO_ACP_I2S_2 0x4
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#define FROM_ACP_I2S_1 0xa
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#define FROM_ACP_I2S_2 0xb
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#define ACP_TILE_ON_MASK 0x03
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#define ACP_TILE_OFF_MASK 0x02
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#define ACP_TILE_ON_RETAIN_REG_MASK 0x1f
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#define ACP_TILE_OFF_RETAIN_REG_MASK 0x20
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#define ACP_TILE_P1_MASK 0x3e
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#define ACP_TILE_P2_MASK 0x3d
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#define ACP_TILE_DSP0_MASK 0x3b
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#define ACP_TILE_DSP1_MASK 0x37
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#define ACP_TILE_DSP2_MASK 0x2f
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/* Playback DMA channels */
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#define SYSRAM_TO_ACP_CH_NUM 12
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#define ACP_TO_I2S_DMA_CH_NUM 13
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/* Capture DMA channels */
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#define ACP_TO_SYSRAM_CH_NUM 14
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#define I2S_TO_ACP_DMA_CH_NUM 15
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#define NUM_DSCRS_PER_CHANNEL 2
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#define PLAYBACK_START_DMA_DESCR_CH12 0
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#define PLAYBACK_END_DMA_DESCR_CH12 1
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#define PLAYBACK_START_DMA_DESCR_CH13 2
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#define PLAYBACK_END_DMA_DESCR_CH13 3
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#define CAPTURE_START_DMA_DESCR_CH14 4
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#define CAPTURE_END_DMA_DESCR_CH14 5
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#define CAPTURE_START_DMA_DESCR_CH15 6
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#define CAPTURE_END_DMA_DESCR_CH15 7
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enum acp_dma_priority_level {
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/* 0x0 Specifies the DMA channel is given normal priority */
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ACP_DMA_PRIORITY_LEVEL_NORMAL = 0x0,
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/* 0x1 Specifies the DMA channel is given high priority */
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ACP_DMA_PRIORITY_LEVEL_HIGH = 0x1,
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ACP_DMA_PRIORITY_LEVEL_FORCESIZE = 0xFF
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};
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struct audio_substream_data {
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struct page *pg;
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unsigned int order;
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u16 num_of_pages;
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u16 direction;
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uint64_t size;
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void __iomem *acp_mmio;
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};
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enum {
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ACP_TILE_P1 = 0,
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ACP_TILE_P2,
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ACP_TILE_DSP0,
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ACP_TILE_DSP1,
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ACP_TILE_DSP2,
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};
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enum {
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ACP_DMA_ATTRIBUTES_SHAREDMEM_TO_DAGB_ONION = 0x0,
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ACP_DMA_ATTRIBUTES_SHARED_MEM_TO_DAGB_GARLIC = 0x1,
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ACP_DMA_ATTRIBUTES_DAGB_ONION_TO_SHAREDMEM = 0x8,
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ACP_DMA_ATTRIBUTES_DAGB_GARLIC_TO_SHAREDMEM = 0x9,
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ACP_DMA_ATTRIBUTES_FORCE_SIZE = 0xF
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};
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typedef struct acp_dma_dscr_transfer {
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/* Specifies the source memory location for the DMA data transfer. */
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u32 src;
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/* Specifies the destination memory location to where the data will
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* be transferred.
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*/
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u32 dest;
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/* Specifies the number of bytes need to be transferred
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* from source to destination memory.Transfer direction & IOC enable
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*/
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u32 xfer_val;
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/* Reserved for future use */
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u32 reserved;
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} acp_dma_dscr_transfer_t;
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#endif /*__ACP_HW_H */
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